The common mistake is choosing software before understanding the work it is meant to support. A demo looks convincing, a decision follows, and the fit problems only appear once people try to use it.
A more reliable order is to map how the work runs today, find where it actually slows down, and only then look at tools. The right system is the one that matches the process, not the one with the longest feature list.
Cost follows the same logic. The cheapest licence can be the most expensive choice once you count the workarounds it forces.
This note is being expanded. The full version is in preparation.
